Mechanical movement.



The invention is capable of embodiment in various forms, but the form shown is the preferred form.

What I claim is:

1. In combination, two members, one mounted in the other so that the two members have a relative movement in a single plane, a third member mounted on and s'urrounding one of said members and revoluble about the same, and having a substantially oblique slot through which the other of said two members projects the axis of rotation of the revoluble member coinciding with the axis of one of said two members and intersecting the axis of the other of said two members at the point where it is mounted.

2. In combination, two members, one mounted in the other so that the two members have a relative movement in a single plane, a third member mounted on and surrounding one of said members and revoluble about the same, and having substantially oblique slots through which the other of said two members projects, said two members be ing pivoted one to another.

8. In combination, two members, one

mountedin the other so that the two members have a relative movement in a single plane, a th1rd member mounted on and surrounding one of sa1d members and revoluble in a plane at right angles :to the axis of said third member.

4. In comblnatlon, two members, one

mounted in the other so that the two members'have a relative movement in a single plane, a third member mounted on and sur rounding one of said members and revoluble about the same, and having substantially spiral slots through which the other of said two members pro ects, said two members being pivoted one to another.

5. In combination, two members, one mounted in the other so that the two members have a relative movement in a single plane, a third member mounted on and surrounding one of said members and revoluble about the same, and having substantially oblique slots through which the other of said two members projects, said two members being pivoted one to another, the portion containing said slots having a substantially spherical exterior surface.

GERALD W. HART.

WVitnesses EDWARD TAYLOR,

J. T. CLARKE. 

